<template>
  <div class="app-container">
    <div class="filter-container">
      <el-input
        v-model="listQuery.name"
        style="width: 200px"
        class="filter-item"
        placeholder="分类名称"
        @keyup.enter.native="handleFilter"
      />
      <el-button
        v-waves
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
      >
        搜索
      </el-button>
      <el-button
        class="filter-item"
        style="margin-left: 10px"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
      >
        新增
      </el-button>
      <el-button
        v-waves
        class="filter-item"
        type="primary"
        :loading="downloadLoading"
        icon="el-icon-download"
        @click="handleDownload"
      >
        导出
      </el-button>
    </div>

    <el-table
      v-loading.body="listLoading"
      :data="list"
      border
      fit
      highlight-current-row
      style="width: 100%"
    >
      <el-table-column
        type="index"
        width="50"
        align="center"
        label="ID"
      />

      <el-table-column width="180px" align="center" label="分类名称">
        <template slot-scope="scope">
          <span>{{ scope.row.name }}</span>
        </template>
      </el-table-column>

      <el-table-column align="center" label="分类名称简介">
        <template slot-scope="scope">
          <span>{{ scope.row.description }}</span>
        </template>
      </el-table-column>

      <el-table-column width="160px" align="center" label="修改时间">
        <template slot-scope="scope">
          <span>{{
            scope.row.updatedTime | parseTime("{y}-{m}-{d} {h}:{i}:{s}")
          }}</span>
        </template>
      </el-table-column>

      <el-table-column width="90" align="center" label="修改人">
        <template slot-scope="scope">
          <span>{{ scope.row.updatedBy }}</span>
        </template>
      </el-table-column>

      <el-table-column width="160px" align="center" label="创建时间">
        <template slot-scope="scope">
          <span>{{
            scope.row.createdTime | parseTime("{y}-{m}-{d} {h}:{i}:{s}")
          }}</span>
        </template>
      </el-table-column>

      <el-table-column width="90" align="center" label="创建人">
        <template slot-scope="scope">
          <span>{{ scope.row.createdBy }}</span>
        </template>
      </el-table-column>

      <el-table-column align="center" label="操作" width="220">
        <template slot-scope="scope">
          <el-button
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
          >
            修改
          </el-button>
          <el-button
            type="danger"
            size="mini"
            @click="deleteCategory(scope.row.id)"
          >
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--翻页工具条-->
    <div class="pagination-container">
      <el-pagination
        background
        :current-page="listQuery.current"
        :page-sizes="[10, 20, 30, 50]"
        :page-size="listQuery.size"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>

    <!--添加或编辑对话框-->
    <el-dialog title="新增/修改" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="temp"
        label-position="right"
        label-width="120px"
        status-icon
        style="width: 80%; margin-left: 30px"
      >
        <el-form-item label="分类名称" prop="name">
          <el-input v-model="temp.name" placeholder="请输入分类名称" />
        </el-form-item>
        <el-form-item label="分类简介" prop="description">
          <el-input
            v-model="temp.description"
            type="textarea"
            :rows="2"
            placeholder="请输入描述内容"
          />
        </el-form-item>
      </el-form>
      <!--对话框动作按钮-->
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createData"
        >
          创建
        </el-button>
        <el-button v-else type="primary" @click="updateData">保存</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { searchCategory, updateCategory, deleteCategory, createCategory } from '@/api/blog/category'
import waves from '@/directive/waves' // 水波纹指令

export default {
  name: 'CategoryManagement',
  directives: {
    waves
  },
  filters: {
    statusFilter(status) {
      const statusMap = {
        deleted: 'info',
        ok: 'success'
      }
      return statusMap[status]
    }
  },
  data() {
    return {
      list: [],
      total: 0,
      listLoading: true,
      listQuery: {
        status: 'ok',
        current: 1,
        size: 10
      },
      dialogStatus: 'create',
      dialogFormVisible: false,
      authFormVisible: false,
      rules: {
        name: [{ required: true, message: '分类名称必填', trigger: 'blur' }]
      },
      checkAll: false,
      resources: [],
      isIndeterminate: true,
      temp: {
        name: '',
        description: ''
      },
      downloadLoading: false
    }
  },
  created() {
    this.searchCategory()
  },
  methods: {
    /**
     * 查询列表
     */
    searchCategory() {
      this.listLoading = true
      searchCategory(this.listQuery).then((response) => {
        this.list = response.data.records
        this.total = response.data.total
        this.listLoading = false
      })
    },
    handleFilter() {
      this.listQuery.current = 1
      this.searchCategory()
    },
    /**
     * 修改每页显示条数
     */
    handleSizeChange(val) {
      this.listQuery.size = val
      this.searchCategory()
    },
    /**
     * 跳转到指定页
     */
    handleCurrentChange(val) {
      this.listQuery.current = val
      this.searchCategory()
    },

    /**
     * 弹出新增分类对话框
     */
    handleCreate() {
      this.temp = {}
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    /**
     * 新增分类
     */
    createData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          createCategory(this.temp).then(() => {
            this.dialogFormVisible = false
            this.$notify({
              title: '创建成功',
              message: '创建成功',
              type: 'success',
              duration: 2000
            })
            this.searchCategory()
          })
        }
      })
    },
    /**
     * 点击更新按钮
     */
    handleUpdate(row) {
      this.temp = Object.assign({}, row) // copy obj
      this.dialogStatus = 'edit'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    /**
     * 更新分类
     */
    updateData() {
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          updateCategory(this.temp).then(() => {
            this.dialogFormVisible = false
            this.$notify({
              title: '编辑成功',
              message: '编辑成功',
              type: 'success',
              duration: 2000
            })
            this.searchCategory()
          })
        }
      })
    },
    /**
     * 删除分类
     * @param id
     */
    deleteCategory(id) {
      this.$confirm('此操作将永久删除, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        deleteCategory(id).then(() => {
          this.$notify({
            title: '删除成功',
            message: '删除成功',
            type: 'success',
            duration: 2000
          })
          this.searchCategory()
        })
      })
    },
    handleDownload() {
      console.log('download')
    }
  }
}
</script>

